"In Alien: I will not dirty my tongue with your -filth-!"
"Are you done yet...?"
" In GBS: It speaks! The wolf speaks! I can't*The Aliens stare at him menacingly*"
– An angry alien and Wolf

Galactic Basic Standard is the language spoken by the majority of the galaxies. In this case it is english (Not that bloody Kortorisan English, init, US English) and mainly universal.